Business April 19, 2017 6:49 pm Caterpillar Announces New Headquarters in Deerfield Caterpillar announced it will build a new corporate headquarters in Deerfield, Illinois. The construction equipment company has strong roots in Illinois, with its current headquarters in Peoria. Local 1:51 Dolton trustees vote to override Mayor Tiffany Henyard's veto of Lightfoot probe into spending 1:34 ‘Flash mob' involving hundreds leads to cancellation of suburban carnival: police 2:30 Snow removal proposal sparks intense debate in Chicago 0:36 Suburban carnival abruptly shut down early due to ‘large fight,' police say 2:00 Pride month celebrations begin in Chicago. What to expect